Inori
NAWF
You think that would help?
Hell yeah! I've had some plants before that weren't doing too well and used some liquid plant food and they bounced right back.
If your soil doesn't have many nutrients in it, watering the plants with the liquid plant food/water mixture gives the plant the nutrients the soil is lacking.
Check some out next time you hit the store. They have plant food for flowers and plant food for vegetables so make sure what you get is organic and that you can use it for vegetables. Don't overuse it though.. if you use too much you can damage the plant